Chenin Blanc has been around for a very long time in France, but it was arguably the South Africans to bring it into the spotlight over the last few decades. Quality dry Chenin Blanc is a chalky, light, fresh style of wine which matches food really well. The South African style has touch more tropical fruitiness to it than other regions.
Traditionally, Chenin Blanc is from the Loire valley in France where it goes into Vouvray wines, among others, and can be sweet or dry. These days, we typically see dry styles of Chenin being preferred.